Facility profile
Westlake Chemicals & Vinyls Llc - Plaquemine Facility
Significant Violation across 12 of the last 12 quarters, with $49,602 in recorded penalties.
Noncompliance quarters
12
Counted from the imported ECHO record over the last 12 quarters.
Penalties
$49,602
Recorded enforcement amount carried into the facility page.
Last inspection
2025-08-07
Displayed as plain language instead of hidden in agency exports.
Trend
Watch
Reported on-site releases are higher in 2024 than in 2022.
| Year | Air | Water | Land | Total |
|---|---|---|---|---|
| 2022 | 145,394 lbs | 209,440 lbs | 59 lbs | 354,893 lbs |
| 2023 | 222,224 lbs | 82,897 lbs | 6,766 lbs | 311,888 lbs |
| 2024 | 431,134 lbs | 88,807 lbs | 1,070 lbs | 521,012 lbs |
Chemical breakdown
What this facility is reporting
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Chlorodifluoromethane (HCFC-22)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Nitrate compounds (water dissociable; reportable only when in aqueous solution)
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Methanol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Vinyl chloride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Barium
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Manganese compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Dichlorodifluoromethane (CFC-12)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ammonia
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Toluene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Acetophenone
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 2-Dichloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Xylene (mixed isomers)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chloroform
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylbenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chlorine
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Copper compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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1, 1, 2-Trichloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Benzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Nickel compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 2-Dichloroethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Zinc compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Lead compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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1, 1, 2, 2-Tetrachloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Hexachloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Carbon tetrachloride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Cumene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chromium compounds (except for chromite ore mined in the Transvaal Region)
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Tetrachloroethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylidene dichloride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Phenol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Trichloroethylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Vinylidene chloride
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Pentachloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Polycyclic aromatic compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chloroprene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Mercury compounds
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 1, 1-Trichloroethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Dichloromethane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 2-Dichloropropane
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Dioxin and dioxin-like compounds
Latest 2024 TRI data shows water as the largest reported pathway for this chemical at the facility.
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Benzo[g, h, i]perylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 3-Dichloropropylene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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1, 4-Dichloro-2-butene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Asbestos (friable)
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Bis(2-chloroethyl) ether
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Chlorobenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Di(2-ethylhexyl) phthalate
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylene glycol
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Ethylene oxide
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Hexachloro-1, 3-butadiene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Hexachlorobenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Pentachlorobenzene
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Polychlorinated biphenyls
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
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Sodium nitrite
Latest 2024 TRI data shows air as the largest reported pathway for this chemical at the facility.
Enforcement layer
Why the ECHO-style detail matters
Significant Violation across 12 of the last 12 quarters, with $49,602 in recorded penalties.